Track-moving device.



C( C. JACOBS. I'RAGK MOVING DEVISE. APPLICATION PILBDVAPR. a, 19.12.

Patented' June 10,1913.

3 'SHEETS-SHEET?.

G. G. JACOBS.

. TRAKMQVING DEVICE; APPLIOAYTION FILED APR.6 ',;1912.

1,064,333; l Patented June10, 191s.

3 SHEETS-SHEET 3.

eXcayatingoI-lachngbody supported n the,

onAieLEs fc. Acons, on AMBoY',

ILLINOIS, AssIGNon ro FREDERICK c. AUSTIN, or?v onIcAGo,.ILLINoIs. y

y A ranoiriuoivine DEVICE.

trackffendwise by the operation -of mechanism onthe said machine or vehicle. Track I Sshifting devices are used, for example, in connection with Aexcavatin machinery, the exea vaterv being ysup 'orte to travel on a short section. of tra'c 'which'jis shifted forward from'time totim as the work pro- Zosresses.' I

' f A special 'object isto provide a'jnovel constructiori andl arrangement whereby'the maehine' er vehieie ie derailed by lowering in, it from the rails,

rather than by liftin when it is desired to shift the track.

`Another object is to provide a track shifting device of such character that it will not be I Iecess'a-ryl to disengage the truck wheels or rollers from the rails when it is desired to, shiftf the track.

" also -an object to provide certain details and features of improvement `tending to" `frer`i'der a track"shifting device of this charac 'oreeicient and satisfactory m I .""F

ese l 'n other useful'iends my inventionA consists'in' matters'hereinafter set forth and claimed."

shown In- Figa 1. Fi 3 is'aside elevation,-

onga large scale", of e forwardportion of thesaid trapk#shifting device, showing the railsffFiggffis asimilar view showing'the said machine-`body derailed and resting on thev ground. Fig. 5`is avertical transverse sectionon line' 5-'5 in Fig. 3, showing two tracks and the two sidesof'the machine' con- .nected toV form thebody.h Fig. 6 is aview.l

` similar to Fig. 5A showing the machine body. resting on'. the ground.

- As thus illustrated, my invention com- Specication of Letters Patent.

Inthe accompanying drawings-Figure' rateiite'ajaune 1o, 191s..

Application mea April e, 1912. serieilveesasce. I

prises a machine orvvehicle` body`A composed of two channel irons'a at one side, l and asimilar' pair of channel irons a1 at the. other side. The members of each pair of channel irons are spaced apart by two solid blocks a* having inclines a3 on the lower surfaces thereof. The parallelepairs l' of channel irons thus provided are connected by the transverse beams at' to v formthe bodyor main frame of theexcavatorf or5 other machine. The'fshoes B aredisposed? .i1-

parallel with and at each vside of the channel Irons a;A and a1,`and ,are joined to thel. channel irons by bracketseb, whereby whn' .the body 1s lowered the'wei'ght is carried' by v70 these .shoes resting on the ground.

'I Ihe tracksv Cand D are disposed respectlvely below the channel irons a. and a1 and are preferably provided with rails c and d, there being two pai'alllA rails for each track. The trucks E support the body on the rails c, and similar trucks F support the body on therailsv d at the other side.' The'trucks EV are connected by side bars e tov keep them` A the proper distance apart, and` the-trucks F `r30 are likewise connected; together. Each Y truck E has rolls or wheels e1 that travel on the rails, and an upper roll or wheel "e2 .that engages'l the bottom of the block a2; the trucks" F are similarly constructed.. At their forward ends the channel irons are provided with pivod hooks G, one for each pair'of' channel irons, and these hooks are adapted to Aengage .and lock the trucks against backwardniovement relative to tle body Aoi the machi e. The tracks C and D have front parts H and rear parts I pro'- Vvided with sheaves la, and c' for the cableJ, which latter is'operated bythe drum Kon they machine, the endsf of.l said cablebeing v95 fastened to the frontand rear ends-of ythe body at 7' andj1, there being a cable ar rangement of this kind at yeachside of ythe machine The posts H--havepins h1. which engage the outer arms .-lofrthe;V hooks' G loo l'ers-MI-forlimiting*the travel of the trucks 105\ The mode of operation is as follows:- .The cable J isoperated by the drum K to draw the machine forward. When the arms g`strike the pinsl h1 Athe trucks are unlocked, `110V4 and then the trucks strike the bumpers L. The forward motion Continues enough to bring the inclines a3' on to the top rolls of the trucks, which latter are standing still,

and the said trucks-then move backward by; reason of the wedging action of said molines.

In other words, the trucks are squeezed out from under the blocks a2., lby the inclineson the bottom thereof,and in this way the machine body is allowed to settle down and whereby the tracks are shifted ahead until -the 'bumpers M strike the rear-trucks. A

Ycontinuation of this pull then results -in crowding the trucks forward under the inclines a3, thus raising the machine ontothe itracks. y The yhooks G then fall in place on the trucks and lock the latter to the body of the machine. The latter is now ready to move forward upon the tracks From the foregoing it will be seen that by my invention I provide means for shift- 'ing :the tracks forward without ylifting the machine. In fact, and when the machine is derailed, it is lowered to the ground. The only raisingy that is necessary is when the weight of the machine is returned lto rthe tracks.

Furthermore, the trucks never leave the tracks, but are always in place thereon. The. machine body is in reality merely -removed from and replaced upon the trucks which always remain on the rails.

What I claim as my invention is 1. A track-shifting .device comprising a Section of track, a body supported to travel on said track, means for lowering the body to transfer the weight thereof from the track to the ground, and mechanism for'shifting the track when thus relieved of the weight of the body.

2. A track-shifting device comprising a section of track, a body supported to travel on said track, means for lowering the body to transfer the weight thereof from the track to the ground, and mechanism for shifting the 'track when thus relieved of the weight of the body, said means including trucks -movable longitudinally of said body. v 3. A track-shifting device comprising a` 4t. A' track-shifting device comprising a section of track, a body supported to travelr on said track, means forlowering the ibody to transfer the weight thereof from lthc track lto the ground, and mechanism foi shifting the track when thus relieved of the .Weight of the body, said means including inclines facing downward on the said body,

lthe body, `and means. for automatically releasing the trucks when the body reaches the forward end -of the track'.

6. A track-shifting device comprising a section of track, a -body sup-ported to travel on said track, means for lowering the body to transfer the weight -thereof .from the .track to the ground, and mechanism vfor shifting the track when thus relieved of the weight ofthe body, said means including trucks, means for locking the trucks to the lbody, and 4means `:for automatically releasing the trucks when the body reaches the forward end of the track.

7. A track-shifting device comprising a section of track,-aibody supported to travel on said track, means for lowering the body -to :transfer the weight thereof from the track -to the ground, and mechanism for shifting the track when thus relieved of the Weight ofthe body, .said means including trucks with wheels `engaging the body and other wheels engaging said track.

v8. A track-Shifting device` comprising a v section of track, a body supported totravel on said track, means for lowering the body to transfer -the Weight thereof from the 4track lto the ground, and mechanism for shifting the track when thus relieved of the weight of the body, said means 'including J110 supporting devices interposed Ebetween the body and truck and movable longitudinally of the body.

9. A trackshifting. device comprising a section of track, a body supported on the track, means for taking the weight of the body off the track, and mechanism for shifting the track while relieved of the Weight of the tbody, said means including trucks movable longitudinally of the body.

l0. A track shifting device comprising a section of track, a body supported on the track, .means for taking the` weight of the body off the track, and mechanism for shifting the track while relieved of the weight of the body, said means including trucks which remain on the track.

11. A track-shifting-device comprising a;

section of track, a body supported .on the track, means for taking the weight ofthe body-off the track, and mechanism for shift` ing the track while relieved of the Weight of the body, said means including Ainclined Ways on the body. f

12. A track shift-ing device comprising a section of track, a body supported on the track, means for taking the Weight of theA means for locking the trucks to `the body, means for releasing the trucks, andI means on the body for causing the trucks m'back up when released.

3rd y o April, 1912.

CHARLES' C. JACOBS.

body o" the track, and mechanism for shift- Witnesses: ing the track while reieved of the weight GEO. F. SCHMIDT, of the body, said means including trucks,

E. H. CLEGG.

opiosci ibis patenfmsy 'be obtained for fve cents each, ny addressing the Commissioner of Patents,

i Washington, I. O.

-Sine by me at Chicago, Iliinois, this 15 a 

